I put these Angry Bear sights on my x-ten as back up low cowitness to the optical Holosun 508T I installed. I put in green lite pipes to contrast with the red chevron of the optic . the combo is instantly picked up and even at night with a light attached work well in the dark. These are very beefy sights= to Dawson IMHO. I am putting the excellent Sig Xray sights I removed on another Sig FWIW they removed and installed as factory. .
